Review Request 118842: Add reset function to QImageItem image property

[David Edmundson]

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https://git.reviewboard.kde.org/r/118842/
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Review request for KDE Frameworks and Plasma.


Repository: kdeclarative


Description
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Add reset function to QImageItem

This allows

    QImageItem {
        image: undefined
    }

without warnings. 

This is useful as otherwise it's impossible to unset a set QImageItem as QImage is uncreatable from within QML.

The immediate usage is to fix a bug in notifications where sometimes an image from a previous notification "leaks" into our current notification.


Diffs
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  src/qmlcontrols/kquickcontrolsaddons/qimageitem.h eef59bc 
  src/qmlcontrols/kquickcontrolsaddons/qimageitem.cpp ed20605 
  src/qmlcontrols/kquickcontrolsaddons/qpixmapitem.h eee8189 
  src/qmlcontrols/kquickcontrolsaddons/qpixmapitem.cpp fcc66b5 

Diff: https://git.reviewboard.kde.org/r/118842/diff/


Testing
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Wrote small qml file, code had warning before, now it doesn't. 
Images are still displayed if set.


Thanks,

David Edmundson

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